Systems

 

 

Integrated electrical and low-voltage systems of all types—inside and outside a building—encompass the range of work that electrical contractors do. The articles in this section highlight different types of work, from security, fire and life safety, to traditional electrical power and distribution, to lighting, cabling and more. 

“Where will you be 10 years from now if you keep on going the way you are going?” Napoleon Hill, one of the great writers on success, famously asked this question. When you apply it to the fire alarm and signaling business, it should give you pause.


For electrical contractors installing video surveillance and networked Internet protocol (IP) cameras, now is a great time to think outside of the proverbial box and look beyond the typical security applications of viewing and recording images of people, places and things.

Designers, contractors and authorities having jurisdiction often misunderstand the term “survivable.” They presume it means the installer has chosen to use either a Class A wiring scheme or has placed the circuits in metal raceway.


For security and life safety systems, reliable, high-quality power solutions are critical. Intrusion detection, access control, video surveillance, mass notification and fire systems count on superior uptime and 24/7 availability, which means consistent, dependable power.


Electrical Contractor

More on Systems

 
The State of Gigabit Ethernet in LAN Wiring Today
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Let’s begin this series on Gigabit Ethernet by recognizing the state of local area networks (LAN) wiring today. (My Gigabit Ethernet article in the September 2000 issue of Electrical Contractor provides background.)

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Performance and Field Testing of Installed Optical Fiber Systems
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Last month’s article dealt with testing copper cabling systems.This month, we examine the performance and testing requirements for installed optical fiber systems. Testing and performance requirements for optical fiber cabling systems were established in Annex H of TIA/EIA-568-A in 1995.

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E-commerce in the Office
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Previous articles have explained some of the ways e-commerce may affect your project management when you use Internet applications service providers for collaboration and material purchasing.

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Pushing the Edges of E-Commerce with Project Collaboration
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Perhaps the most useful and exciting, yet technologically complex and challenging e-commerce application is the application service provider (ASP).

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How Many Fibers Are Enough?
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Our local newspaper reported that the local phone company had completed installing fiber optic cables between their central offices in the Boston area. That didn’t surprise me, but what did was the description of the cables they were installing. Each cable had 864 fibers in it!

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Permanent Link versus Basic Link: What Does It Mean for Copper?
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With the approval and publication of Telecommunications Industry Association (TIA)-TSB67 “Transmission Performance Specifications for Field Testing of Unshielded Twisted-Pair Cabling Systems” in October 1995, TIA launched the industry requirement for cabling system transmission performance and field

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System Solutions Start with Intercoms and Paging
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Bells and whistles don’t always sell low-voltage products. It’s the tried-and-true equipment that has become indispensable to commercial, industrial, and institutional customers. This equipment holds a market, and intercoms and paging systems are a perfect example. New they’re not.

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